Bucket construction



June 9, 1931. .w. M. VENABLE BUCKET CONSTRUCTION Filed Dec. 21 192 2 Sheets-Sheet l June 9, 1931. w. M. VENABLE BUCKET CONSTRUCTION 2 Sheets-Sheet 2 Filed Dec. 21 192 Patented June 9, 1931 UNITED STATES v KNOX COMPANY, OF

WILLIAM amYo VENABLE, or PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO BLAW- PITTSBURGH, PENNSYLVANIA, A CORPORATION OF JERSEY I BUCKET CONSTRUCTION Application filed December 21, 1928. Serial No. 327,635.

This invention relates to excavating buckets of the type sometimes referred to as clam shell buckets. i

The principal object of the invention is to simplify and improve the construction of buckets of this character so that parts which wear may be more readily renewed, and so that certain parts of the same size can be utilized for buckets of different sizes with buta minimum of trouble and expense in adapting such parts to the specific size desired.

Another object of the invention is to adapt the construction or framework of the bucket to scoops of very many different sizes and shapes by means of which the bucket can be easily adapted to handle a wide variety of materials under the many diverse conditions met with in service.

Another object ofthe invention is to secure great strength with minimum weight and to adapt the scoop design in each instance specifically to the materials which are to be handled, in connection with which ob ject I also aim to provide as strong a connection between the hinge members and the corner brackets of the scoop as may be desirable without resorting to the use of heavy plate in the sides of the scoops proper. 1

More specifically stated, it is the object of my invention to provide a separately formed attaching or connecting member by means of which the hinges, the scoops and the corner brackets are securely united together.

The foregoing, together with such other objects as may hereinafter appear, or are incident to my invention, I obtain by means of a construction which is illustrated in pre ferred form in the accompanying drawings, wherein- Fig. 1 is a Side elevation of an excavating bucket embodying my improvements.

Fig. 2 is an end View of the lower part of the bucket shown in Fig. 1, and

Figs. 3 and 4 are detailed views illustrating the attaching or connecting means mentioned above.

The bucket illustrated happens to be of the lever arm type and is provided with the hinge pin 1 upon which is mounted the lever arm plates 2 similar to those which are illustrated, described and claimed in the patent to Robin and Venable, No. 1,686,17 6.

Ateach end of the bucket there are a pair of hinge members .3 and 4: which, in this instance, terminate short of the scoop members 5, as will be clearly apparent upon inspection of the drawings, particularly Fig. 1.

The hinge members 3 and 4 are securely and permanently fastened to the intermediate members 6, either by welding or by riveting, as may be preferred. In Fig. 1 I have shown this connection as having been made by the rivets 8a. V

The members 6 are made of such thickness, width and shape as to form the upper portion of the scoop or bowl'of the bucket and are adapted to Withstand all stresses applied by the operating mechanism by means of which the bucket is opened and closed. Each member 6 has a side web portion 7 which is secured to a hinge member and also a back portion 8 bent at right angles to the web portion 7 with a radius of curvature at the bend or corner 9 suitable for the accommodation of a corner bracket 10. The back portion 8 isin proper alignment to form half of the upper back portion of a scoop. The corner brackets may also be secured by means of rivets 8a or by welding, as may be desired.

I prefer to make the members 6 in pairs,

oneipair for the top portion of each'scoop,

the back portions 8 of the two members of each pair being joined together in'the middle at the back of the scoop by means of the splice plate 8. If desired, however, the two members 6 could be made as a single piece without a splice plate.

f In the particular type of bucket illustrated the ends of the leverarm plates 2 are secured to the back portions 8' of-themembers 6 at substantially the middle of the top vof. the scoop, as clearly shown in'Fig. 2, the connection being made either by riveting or -welding asmay: be desired. y

It will now be apparent that all of the parts of the bucket, with the exception of the scoops 5proper, may be assembled first, and that the scoops may be subsequently attached bucket, said adapter member being formed of thereto. Furthermore, the scoops 5 may be removed and renewed, or even replaced by scoops or some other design at any time that they may be Welded. In any event, however,

the scoops are readily removable either by cutting the rivets or the weld seams, or by removing the bolts, without in anyway disturbing the connections between the other bucket parts.

It should be noted that the member 6 can be made of extremely tough plate, much stronger and tougher in factthan it is possible touse where the member 6 and the hinge member are cast as one piece and the hinge secured directly tothe scoop plates. It is a comparatively inexpensive proposition to carry in stock a number of sizes of attaching or adapter members 6, whereas it is rather expensive to cast a plurality of sizes of hinge members and keep on hand a large, stock of all sizes.

1. The combination of a bucket hinge memher, a scoop, a scoop corner bracket, and a separtely formed adapter member to which all of said parts are secured, said hinge memher being capable of use with a scoop of a different size by changing the adapter member.

2. The combination of apair of bucket hinge members, a pair of scoops, and a pair of separately formed adapter members for at taching the scoops to the hinge members, said hinge members being capable of use with scoops of a different size by changing the adapter members. i

3. In a bucket, thecombin'ationof scoop hinge members, scoop members, and separately formed adapter means connecting the" hinge members with said scoop members, said hinge members being capable of use with scoop members of a different size by chan ing the adapter means.

4. In a bucket, the combination of apair; of scoop members, a hinge pin,;hinge members adapted to swing on said pin, scoop corner brackets, and separately formed adapter members for securing a hinge member, a corner bracket and 'a scoop member together, said hinge members being capable of use with scoop members of a diflerent size by changing the adapter members. I

5. As a new article of manufacture, an adapter member for uniting independent scoop and hinge members in an excavating plate material and having a: web portion for overlapping the hinge and the adjacent scoop wall and an angular extension therefrom for paralleling the upper outer wall of the scoop.

6. As a new article of manufacture, 4 an adapter member for uniting independent scoop, corner bracket and hinge member s'in an excavatingbucket, said adapter member being'formed of plate material and having a securing web portion for overlapping the hinge and the adjacent scoop wall and an angular extension therefrom for paralleling the upper outer wall of the scoop and providing an embracing corner for said bracket;

7. In a bucket, the combination of ahinge pin, a scoop, a hinge casting; terminating short of thescoop and mounted on the pin independent of its relation to the scoop, and a separately formed adapter for connecting the hinge casting to the scoop, said hinge casting being capable of use with a scoop of a diiferent'size by changing the adapter. v

In testimony whereof I have hereunto signed my name. I

IVILLIAM MAYQ VENABLE.

loo 

